PROBLEM TO BE SOLVED: To provide a technique capable of suppressing impairment of a function of adjusting pressure inside a casing due to attachment of a large amount of liquid floating particles to a porous body.SOLUTION: The ventilation member includes: a gas permeable membrane 10 which prevents intrusion of liquid and solid and has a plurality of holes through which gas passes; and a collection membrane 20 in which a plurality of holes that collect liquid and liquid floating particles and allow gas to permeate are formed and which is disposed not in contact with the gas permeable membrane 10 so as to allow gas to pass through a gap between the collection membrane 20 and the gas permeable membrane 10.SELECTED DRAWING: Figure 2

    【課題】多孔体に多量の液体浮遊粒子が付着することに起因して筐体内の圧力を調整する機能が損なわれることを抑制することができる技術を提供する。【解決手段】液体および固体の侵入を阻止するとともに気体が透過する孔が複数形成されている通気膜10と、液体および液体浮遊粒子を捕集するとともに気体が透過するのを許容する孔が複数形成されている捕集膜20であって、通気膜10と接触せずに通気膜10との間の隙間に気体が透過するように配置された捕集膜20とを備える。【選択図】図2


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    Title :

    VENTILATION MEMBER


    Additional title:

    通気部材


    Contributors:

    Publication date :

    2017-11-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H05K PRINTED CIRCUITS , Gedruckte Schaltungen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen



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